package case1.core.observer;

/**
 * description:
 * bear观察者类
 * @author Yuanml on 2020/11/11 10:59
 */
public interface BeatObserver extends Observer{
    /**
     * description:
     * @author Yuanml
     * @date 2020/11/11 上午11:03
     **/
    public void updateBeat();
}
